Stainless steel explosion-proof filter box

Abstract

This utility model discloses a stainless steel explosion-proof filter box, comprising: a box body with an air inlet, a filter fixedly connected to its inner wall, a connecting shell fixedly connected to the top wall, a centrifugal fan connected to the connecting shell, and a U-shaped enclosure fixedly connected to the box body, with a folded filter screen fixedly connected to the inner wall of the enclosure. The box body is made of stainless steel. The connecting shell has multiple ventilation holes, and filter blocks are fixedly connected to the inner walls of the ventilation holes. An explosion-proof start switch is fixedly connected to the outer wall of the box body and electrically connected to the centrifugal fan. A connecting pipe is fixedly connected to the centrifugal fan, and the connecting pipe connects the air inlet of the box body and the air intake of the centrifugal fan. The advantages of this utility model are: ensuring safe and stable operation of the equipment in flammable and explosive environments, preventing explosion accidents caused by electric sparks, high temperatures, or static electricity; and significantly improving air cleanliness and operational safety in explosive environments through a multi-level collaborative mechanism.

Description

Technical Field

[0001] This utility model relates to the field of air purification technology, specifically to a stainless steel explosion-proof filter box. Background Technology

[0002] In high-tech industries such as semiconductor manufacturing, electronic component packaging, and flat panel displays, the production environment requires extremely high levels of air cleanliness. Furthermore, their production processes often use or generate various flammable, explosive, toxic, and harmful specialty gases and chemicals.

[0003] These process exhaust gases or ambient air contain both explosive hazardous substances and highly concentrated pollutants. Traditional air purification equipment has some limitations when applied to such scenarios:

[0004] The casing of ordinary air purification equipment is mostly made of carbon steel or ordinary aluminum alloy. These materials are prone to rusting or generating static electricity in corrosive gas environments. When handling air containing explosive gases such as silane and hydrogen, if an electric spark or localized high temperature is generated inside the equipment, it can easily cause combustion or explosion, resulting in major production safety accidents and equipment losses.

[0005] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0006] The technical problem to be solved by this utility model is to overcome the above-mentioned problems and provide a stainless steel explosion-proof filter box.

[0007] To solve the above-mentioned technical problems, the technical solution provided by this utility model is: a stainless steel explosion-proof filter box, comprising:

[0008] The enclosure has an air inlet, a filter is fixedly connected to its inner wall, and a connecting shell is fixedly connected to its top wall.

[0009] Centrifugal fan connected to the connecting housing;

[0010] A U-shaped enclosure is fixedly connected to the box body, and a folded filter screen is fixedly connected to the inner wall of the enclosure.

[0011] Preferably, the housing is made of stainless steel.

[0012] Preferably, the connecting housing has multiple ventilation holes, and a filter block is fixedly connected to the inner wall of the ventilation holes.

[0013] Preferably, an explosion-proof start switch is fixedly connected to the outer wall of the housing and electrically connected to the centrifugal fan.

[0014] Preferably, a connecting pipe is fixedly connected to the centrifugal fan, and the connecting pipe connects the air inlet of the housing and the air inlet of the centrifugal fan.

[0015] The advantages of this utility model compared with the prior art are as follows:

[0016] The enclosure is made of stainless steel, making it sturdy and durable; the core power component uses an explosion-proof centrifugal fan; and the control components use an explosion-proof start switch. These three components work together to ensure safe and stable operation of the equipment in flammable and explosive environments, preventing explosions caused by electrical sparks, high temperatures, or static electricity.

[0017] This invention significantly improves air cleanliness and operational safety in explosive environments through a multi-level synergistic mechanism, achieving deep purification through a combination of physical interception and chemical adsorption. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a perspective view of the present invention.

[0020] Figure 2 This is the structure of the utility model Figure 1 .

[0021] Figure 3 This is the structure of the utility model Figure 2 .

[0022] As shown in the figure:

[0023] 1. Housing; 2. Air inlet; 3. Filter; 4. Connecting shell; 5. Centrifugal fan; 6. Enclosure; 7. Folded filter screen; 8. Ventilation hole; 9. Filter block; 10. Explosion-proof start switch; 11. Connecting pipe. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Example 1:

[0026] like Figures 1 to 3 As shown, this utility model provides a stainless steel explosion-proof filter box, including a box body 1. In this embodiment, the box body 1 adopts a rectangular structure design, and an air inlet 2 is opened in the middle of the top of the box body 1; a through opening is provided at the bottom of the box body 1, which is directly connected to the external working environment. This forms a channel in which gas flows into the box body 1 from the air inlet 2 and then flows out to the outside from the opening on the box body 1.

[0027] In order to allow air to flow into the housing 1 quickly, a connecting shell 4 is now fixedly connected to the top wall of the housing 1. A connecting hole is opened in the middle of the bottom wall of the connecting shell 4, and a centrifugal fan 5 is installed in the connecting hole. The centrifugal fan 5 is an explosion-proof BYF GB3836. The centrifugal fan 5 is then fixedly connected to the bottom of the connecting shell 4 through a connecting seat.

[0028] It should also be noted that the air inlet and outlet of the centrifugal fan 5 are both located inside the connecting housing 4.

[0029] Then, a connecting pipe 11 is installed, with its bottom fixedly connected to the centrifugal fan 5 and its top fixedly connected to the middle of the top wall of the housing 1. This connects the air inlet 2 of the housing 1 and the air intake of the centrifugal fan 5.

[0030] An explosion-proof start switch 10 is fixedly connected to the outer wall of the housing 1. In this embodiment, the explosion-proof start switch 10 is a Siemens 3SU1400-1AA10-1CA0. The explosion-proof start switch 10 is electrically connected to the centrifugal fan 5. In addition, a wiring hole is opened at the top of the housing 1, and the connecting wire passes through the wiring hole. In order to increase the explosion-proof effect, the connecting wire is covered with a corrosion-resistant metal braided mesh and lined with a flame-retardant rubber layer.

[0031] Finally, several ventilation holes 8 are opened on the outer wall of the connecting shell 4.

[0032] Therefore, in the specific implementation process of this embodiment, the explosion-proof start switch 10 is connected to an external power source. Turning the knob on the explosion-proof start switch 10 supplies power to the centrifugal fan 5, causing the centrifugal fan 5 to operate and generate negative pressure, drawing surrounding air into the housing 1. Specifically, the air passes through the air inlet 2 and connecting pipe 11, then into the centrifugal fan 5, and is then discharged through the air outlet duct on the centrifugal fan 5 into the connecting housing 4. It then enters the housing 1 through the ventilation hole 8 of the connecting housing 4, and finally is discharged to the outside below the housing 1 through a through-hole.

[0033] Example 2:

[0034] To provide a more detailed explanation of the above embodiments and to provide a filtration function for the stainless steel explosion-proof filter box, Embodiment Two is hereby provided.

[0035] In this second embodiment, a U-shaped enclosure 6 is fixedly connected to the middle of the top of the box 1, and a folded filter screen 7 is fixedly connected to the inner wall of the enclosure 6 to filter impurity particles in the air.

[0036] Meanwhile, a filter block 9 is fixedly connected to the inner wall of the ventilation hole 8. In this embodiment, the filter block 9 is equipped with coconut shell carbon and 3M anti-static function. TM 60926ESD.

[0037] Finally, a filter 3 is fixedly connected to the bottom of the inner wall of the housing 1. In this embodiment, the filter 3 is a Safe Flow filter. TM EX.

[0038] Therefore, in conjunction with Embodiment 1, in the specific implementation of Embodiment 2, when the centrifugal fan 5 is started, the outside air first passes through the folded filter 7 to filter out particulate impurities in the air, and then the air entering the connecting housing 4 is filtered by the filter block 9 in the ventilation hole 8 to complete the adsorption of gaseous pollutants. Finally, the gas enters the housing 1, and then passes through the filtration effect of the filter 3 before entering the outside.

[0039] In summary, the stainless steel explosion-proof filter box provided by this utility model has at least the following advantages:

[0040] This multi-level synergistic mechanism significantly improves air cleanliness and operational safety in explosive environments, achieving deep purification goals through the combined effects of physical interception and chemical adsorption.

[0041] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

[0042] In addition, all electrical components mentioned in this article are connected to an external main controller and 220V AC mains power. The main controller can be a conventional known device such as a computer for control. The specific implementation of this disclosure omits detailed descriptions of known functions and known components. To ensure the compatibility of the device, the operating methods used are consistent with the parameters of commercially available instruments.

Claims

1. A stainless steel explosion-proof filter box, characterized in that, include: A box (1) with an air inlet (2) has a filter (3) fixedly connected to its inner wall and a connecting shell (4) fixedly connected to its top wall. Centrifugal fan (5) connected to connecting housing (4); A U-shaped enclosure (6) is fixedly connected to the box body (1), and a folded filter screen (7) is fixedly connected to the inner wall of the enclosure (6). The material of the box (1) is stainless steel; An explosion-proof start switch (10) is fixedly connected to the outer wall of the housing (1) and is electrically connected to the centrifugal fan (5); The centrifugal fan (5) is an explosion-proof centrifugal fan.

2. The stainless steel explosion-proof filter box according to claim 1, characterized in that: The connecting shell (4) has multiple ventilation holes (8), and a filter block (9) is fixedly connected to the inner wall of the ventilation holes (8).

3. The stainless steel explosion-proof filter box according to claim 1, characterized in that: A connecting pipe (11) is fixedly connected to the centrifugal fan (5), and the connecting pipe (11) connects the air inlet (2) of the box (1) and the air inlet of the centrifugal fan (5).

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